[Help-glpk] [Fwd: N00b question: reverse engineering s.t. statement(s)]

[Andrew Makhorin]

-------- Forwarded Message --------
From: goldford <address@hidden>
To: address@hidden
Subject: [Help-glpk] N00b question: reverse engineering s.t.
statement(s)
Date: Tue, 29 Nov 2011 13:12:24 -0800 (PST)

hi, i have only a little experience with GLPK.  I've followed a couple of
tutorials but now have to write a series of 'subject to' contraints and
equalities out in traditional mathematical/scientific notation.  Could
anyone offer a little help interpreting this one? 

UpZ{ i in I,  k in O: (i,k) in Options}:  z[i,k] <= Zmax[i,k]*x[i,k];

Where 'Options' is I Cross O, and 
Zmax is a param, one (i,k) in Options.  

I'm having trouble just writing this out logically, especially the left side
of the colon.  Little help?